Page 132 - DCAP307_PLANNING_AND_MANAGING_IT_INFRASTRUCTURE

Planning and Managing IT Infrastructure

Notes Self Assessment

Fill in the blanks:
9. .................................... devices are compliant with each other to grant efficient access of
information to the user.

10. Wi-Fi location where the users can connect to the wireless network is called
a ....................................
11. In .................................... Wi-Fi network can be connected without central device known as
router or access point.

7.4 Wi-Max

Wi-Max stands for Worldwide Interoperability for Microwave Access. Wi-Max technology is a
telecommunications technology that offers transmission of wireless data via a number of
transmission methods; such as portable or fully mobile internet access via point to multipoints
links. The Wi-Max technology offers around 72 Mega Bits per second without any need for the
cable infrastructure. Wi-Max technology is based on Standard that is IEEE 802.16, it usually also
called as Broadband Wireless Access. Wi-MAX Forum created the name for Wi-Max technology
that was formed in Mid June 2001 to encourage compliance and interoperability of the Wi-Max
IEEE 802.16 standard. Wi-Max technology is actually based on the standards that making the
possibility to delivery last mile broadband access as a substitute to conventional cable and DSL
lines.
Wi-Max (802.16) technology often misinterpreted by the people by the names of mobile
Wi-MAX, 802.16d, fixed Wi-MAX and 802.16e. Actually 802.16-2004 or 802.16d is developed by
the third party as a standard and it is also referred to as Fixed Wi-MAX because this standard is
lacking behind just because of the non-mobility feature that’s why it’s often called as Fixed
Wi-MAX. During the maturity period of Wi-Max (802.16) technology some of the amendments
were made to the above mentioned 802.16d and they referred this amending standard as 802.16e.
802.16e introduced mobility and some other features amongst other standards and is also known
as Mobile Wi-MAX. Mobile Wi-MAX takes the fixed wireless application a step further and
enables cell phone-like applications on a much larger scale.
Figure 7.1: Wi-Max
Pleasant-to-use and portable
Wirless access point
multimedia communication
Wi-Fi-WI-MAX
converter
Mobile WIMAX Internet
Spot type (802.16e)

CPE type BS
Wi-Fi Products
(802.11a/b/g)
Wi-Fi-WI-MAX linkage security and QoS
Source: http://freewimaxinfo.com/wi-max-technology.html

Example: Mobile Wi-MAX enables streaming video to be broadcast from a speeding
police or other emergency vehicle at over 70 MPH. It potentially replaces cell phones and
mobile data offerings from cell phone operators such as EvDo, EvDv and HSDPA.

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